23573447077 has 2 divisors, whose sum is σ = 23573447078. Its totient is φ = 23573447076.

The previous prime is 23573447071. The next prime is 23573447081. The reversal of 23573447077 is 77074437532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22181336356 + 1392110721 = 148934^2 + 37311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23573447077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23573447077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23573447071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11786723538 + 11786723539.

It is an arithmetic number, because the mean of its divisors is an integer number (11786723539).

Almost surely, 2^23573447077 is an apocalyptic number.

It is an amenable number.

23573447077 is a deficient number, since it is larger than the sum of its proper divisors (1).

23573447077 is an equidigital number, since it uses as much as digits as its factorization.

23573447077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3457440, while the sum is 49.

The spelling of 23573447077 in words is "twenty-three billion, five hundred seventy-three million, four hundred forty-seven thousand, seventy-seven".